Re: [lwip-users] double free errors

[Jens Nielsen]

You need to check for concurrency issues, are you calling lwip from different threads and/or interrupts?

ethernet_input (struct pbuf * p, struct netif * netif) Line: 186    
ethernetif_input (struct netif * netif) Line: 788   
ethernet_task Line: 247 

Like this, is this an ethernet task calling into non-thread safe lwip?

http://www.nongnu.org/lwip/2_0_x/pitfalls.html

Cheers
Jens